Effect of Rearing Temperature on Transovarial Transmission of St. Louis Encephalitis Virus in Mosquitoes

James L. Hardy Naval Biosciences Laboratory and Department of Biomedical and Environmental Health Sciences, University of California, Pacific Research Unit, Research Corporation of the University of Hawaii, Berkeley, California 94720

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Leon Rosen Naval Biosciences Laboratory and Department of Biomedical and Environmental Health Sciences, University of California, Pacific Research Unit, Research Corporation of the University of Hawaii, Berkeley, California 94720

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Laura D. Kramer Naval Biosciences Laboratory and Department of Biomedical and Environmental Health Sciences, University of California, Pacific Research Unit, Research Corporation of the University of Hawaii, Berkeley, California 94720

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Sally B. Presser Naval Biosciences Laboratory and Department of Biomedical and Environmental Health Sciences, University of California, Pacific Research Unit, Research Corporation of the University of Hawaii, Berkeley, California 94720

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Donald A. Shroyer Naval Biosciences Laboratory and Department of Biomedical and Environmental Health Sciences, University of California, Pacific Research Unit, Research Corporation of the University of Hawaii, Berkeley, California 94720

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Michael J. Turell Naval Biosciences Laboratory and Department of Biomedical and Environmental Health Sciences, University of California, Pacific Research Unit, Research Corporation of the University of Hawaii, Berkeley, California 94720

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DOI:
https://doi.org/10.4269/ajtmh.1980.29.963
Volume/Issue:
Volume 29: Issue 5
Page(s):
963–968
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Female Aedes albopictus and Aedes epactius infected by inoculation with St. Louis encephalitis (SLE) virus transmitted virus transovarially to their F1 progeny. With Ae. epactius, minimal infection rates (MIR) in F1 larvae were similar for progeny reared at 18 (± 1)°C or 27 (± 1)°C, whereas, MIR's were significantly higher in F1 adults reared at 18°C, than they were in F1 adults reared at 27°C. Use of different strains of SLE virus appeared to influence transovarial transmission of virus by Ae. albopictus, but not by Ae. epacticus. Transovarial transmission of SLE virus was not demonstrated with colonized strains of Aedes dorsalis, Ades sierrensis, Ades triseriatus, Ades vexans, Culex pipiens, Culex quinquefasciatus and Culex tarsalis, and field strains of Ae. vexans.

Author Notes

Copyright:
Copyright © 1980 by The American Society of Tropical Medicine and Hygiene 1980
Accepted:
12 Jan 1980
|
Published Online:
Sep 1980
Cover The American Journal of Tropical Medicine and Hygiene
The American Journal of Tropical Medicine and Hygiene
Print ISSN:
0002-9637
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